Home Backend Development PHP Tutorial RadioButton, input, CheckBox value assignment implementation code in jQuery

RadioButton, input, CheckBox value assignment implementation code in jQuery

Jun 06, 2017 pm 04:15 PM
jquery value Assignment

1. jquery gets the radio group radio

$("input[name='name']:checked").val();
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2. jquery gets the next value of radiobutton

$("input[name='name']:checked").next().text()$("input[name='name']:checked").val()
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3. jquery gets the input value

$('#id').val()
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4. jquery determines the checkbox

$("#id:checkbox").attr("checked")
取值 $("#id").attr("value");
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Assignment is to give the value directly in text(), val()

How does JQUERY get the text, areatext, radio, checkbox, and select values?

$("input").val();
$("textarea").text();
$("select").val();
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Control form elements:
Text box, text area: $("#txt").attr("value",'');//Clear content
$("#txt").attr("value",'11');//Fill content
Multiple selection box checkbox: $("#chk1").attr("checked",'' );//Unchecked
$("#chk2").attr("checked",true);//Checked
if($("#chk1").attr('checked') ==undefined) //Judge whether

radio group radio has been checked: $("input[@type=radio]").attr("checked",'2');//Set value The item =2 is the currently selected item

drop-down box select: $("#sel").attr("value",'-sel3');//Set the item value=-sel3 as the currently selected item Item
$("

jQuery Gets and sets the value of the select drop-down box Article Category:.net Programming

Get Select:
Get select selected text:

$("#ddlRegType").find("option:selected").text();
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Get the value selected by select:

$("#ddlRegType ").val();
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Get the index selected by select:

$("#ddlRegType ").get(0).selectedIndex;
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Set select:
Set select selected index:

$("#ddlRegType ").get(0).selectedIndex=index;//index为索引值
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Set select selected value:

$("#ddlRegType ").attr("value","Normal“);
$("#ddlRegType ").val("Normal");
$("#ddlRegType ").get(0).value = value;
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Set select selected text:

var count=$("#ddlRegType option").length;
for(var i=0;i<count;i++) 
{ if($("#ddlRegType ").get(0).options[i].text == text) 
{ 
$("#ddlRegType ").get(0).options[i].selected = true; 
break; 
} 
}
$("#select_id option[text=&#39;jQuery&#39;]").attr("selected", true);
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Set select option item:

$("#select_id").append("
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Clear Select:

$("#ddlRegType ").empty();
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